Optimizing Compressive Strength Characteristics of Hollow Building Blocks from Granite Quarry Dust and Sand

SO Osuji, BN Egbon
2015 Nigerian Journal of Technology  
As a result of the overdependence on river As a result of the overdependence on river As a result of the overdependence on river As a result of the overdependence on river----sand for construction activities, there is need to source for a readily sand for construction activities, there is need to source for a readily sand for construction activities, there is need to source for a readily sand for construction activities, there is need to source for a readily available material with comparable
more » ... l with comparable strength when used for certain purposes available material with comparable strength when used for certain purposes available material with comparable strength when used for certain purposes available material with comparable strength when used for certain purposes (in this case, sandcrete (in this case, sandcrete (in this case, sandcrete (in this case, sandcrete hollow blocks). hollow blocks). hollow blocks). hollow blocks). This paper evaluates the compressive strength of sandcrete hollow building blocks when its sand fraction is partially This paper evaluates the compressive strength of sandcrete hollow building blocks when its sand fraction is partially This paper evaluates the compressive strength of sandcrete hollow building blocks when its sand fraction is partially This paper evaluates the compressive strength of sandcrete hollow building blocks when its sand fraction is partially replaced with quarry dust. A range of 0%, 10%, replaced with quarry dust. A range of 0%, 10%, replaced with quarry dust. A range of 0%, 10%, replaced with quarry dust. A range of 0%, 10%, 15%, 20% and 25% sand replacement with quarry dust was used in 15%, 20% and 25% sand replacement with quarry dust was used in 15%, 20% and 25% sand replacement with quarry dust was used in 15%, 20% and 25% sand replacement with quarry dust was used in the cement: the cement: the cement: the cement: sand mix ratios of 1:6 and 1:8 for molding the blocks of size 450mm x 225mm x 225mm.These blocks sand mix ratios of 1:6 and 1:8 for molding the blocks of size 450mm x 225mm x 225mm.These blocks sand mix ratios of 1:6 and 1:8 for molding the blocks of size 450mm x 225mm x 225mm.These blocks sand mix ratios of 1:6 and 1:8 for molding the blocks of size 450mm x 225mm x 225mm.These blocks were produced by machine compaction under a pressure of 3N/mm were produced by machine compaction under a pressure of 3N/mm were produced by machine compaction under a pressure of 3N/mm were produced by machine compaction under a pressure of 3N/mm 2
doi:10.4314/njt.v34i3.8 fatcat:24ilirky6rckzfendjrwocthii